import sun.applet.Main;

import java.util.Scanner;

public class TypeOJ {
    public class Main {
        public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            double d = scanner.nextDouble();
            System.out.println(Main.typeConversion(d));
        }

        public static int typeConversion(double d) {

            //write your code here.....
            String s = String.valueOf(d).split("\\.")[0];
            return Integer.parseInt(s);
        }
    }
}

